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13885236 = 2233831549
BaseRepresentation
bin110100111101…
…111100110100
3222010102222000
4310331330310
512023311421
61213335300
7226010511
oct64757464
928112860
1013885236
117924202
124797530
132b52121
141bb6308
151344226
hexd3df34

13885236 has 48 divisors (see below), whose sum is σ = 36456000. Its totient is φ = 4569696.

The previous prime is 13885213. The next prime is 13885253. The reversal of 13885236 is 63258831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13885236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8190 + ... + 9738.

It is an arithmetic number, because the mean of its divisors is an integer number (759500).

Almost surely, 213885236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13885236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18228000).

13885236 is an abundant number, since it is smaller than the sum of its proper divisors (22570764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13885236 is a wasteful number, since it uses less digits than its factorization.

13885236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1637 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13885236 is about 3726.2898437991. The cubic root of 13885236 is about 240.3538530271.

The spelling of 13885236 in words is "thirteen million, eight hundred eighty-five thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 83 108 166 249 332 498 747 996 1494 1549 2241 2988 3098 4482 4647 6196 8964 9294 13941 18588 27882 41823 55764 83646 128567 167292 257134 385701 514268 771402 1157103 1542804 2314206 3471309 4628412 6942618 13885236